<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>input</title>
</head>
<body>
    <h1>请按照提示输入信息</h1>
    <form action="" method="post">
        <p>端口：<input type="text" name="port"></p>
        <p><input type="submit" value="输入信息"></p>
    </form>
</body>
</html>